mam na jutro pomocy
oblicz ulamki zwykłe i dziesietne
5,5;[2 1/4 *6-0,5]
5/7 *4,2-[1 1/4 -0,5]
[5 -1 1/2 ];[2 3/8 - 1,75]
3 3/4 *0,8 +2 2/3 *0,3
4 1/2 -2,4;2 2/3+1,4
zad2
uporządkuj podane liczby w kolejnosci rosnącej;
a.75/20. 25/8 3,25 3,7 b, 1 3/5,1,4 ,1,397 ,1 2/7
3,oblicz 0,2+3/4
1/3-0,1
1/2+0,308
1/4*0,4
2/7*0,3
1 3/4;0,1
0,6;3/4
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5,5;[2 1/4 *6-0,5]=55/10:[9/4*6-1/2]=55/10:[27/2-1/2]=55/10:26/2=55/10*2/26=11/26 5/7 *4,2-[1 1/4 -0,5]=5/7*42/10-[5/4-1/2]=3/1-[5/4-2/4]=3/1-3/4=12/4-3/4=9/4=2 1/4 [5 -1 1/2 ];[2 3/8 - 1,75]=[5/1-3/2]:[19/8-175/100]=[10/2-3/2]:[475/200-350/200]=7/2:125/2007/2*200/125=700/125=5 75/125=5 3/5 3 3/4 *0,8 +2 2/3 *0,3=15/4*8/10+8/3*3/10=6/2+4/5=30/10+8/10=38/10=3 8/10=3 4/5 4 1/2 -2,4;2 2/3+1,4=9/2-24/10:8/3+14/10=9/2-24/10*3/8+14/10=9/2-9/10+14/10=45/10-9/10-14/10=22/10=2 2/10=2 1/5 a.75/20=3,75 (4) 25/8=3,125 (2) 3,25 (3) 3,7 (1) b, 1 3/5=1,6 (1) 1,4 (2) 1,397 (3) 1 2/7=1/286 (4) 0,2+3/4=2/10+3/4=4/20+15/20=19/20 1/3-0,11/3-1/10=10/30-3/30=7/30 1/2+0,308=0,5+0,308=0,808 1/4*0,4=1/4*4/10=1/10 2/7*0,3=12/7*3/10=3/35 1 3/4;0,1=7/4:1/10=7/4*10/1=35/2=17 1/2 0,6;3/4=6/10:3/4=6/10*4/3=4/5